ARKG vs SPY: Holdings Overlap
ARKGARK Genomic Revolution ETF
ARK · 32 holdings · $1.6B · as of 2026-04-30
SPYState Street® SPDR® S&P 500® ETF Trust
State Street (SPDR) · 504 holdings · $812.0B · as of 2026-08-06
Holdings snapshots are 98 days apart (ARKG: 2026-04-30, SPY: 2026-08-06). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are ARKG and SPY?
ARK Genomic Revolution ETF (ARKG, by ARK) holds 32 positions; State Street® SPDR® S&P 500® ETF Trust (SPY, by State Street (SPDR)) holds 504. They have 1 holdings in common, and by portfolio weight the two funds are 0.9% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 1ARKG holds 32 · SPY holds 504
- Weight in Shared Holdings
- ARKG 1%·SPY 1%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in ARKG
31 of 32 positions (98.6% of the fund) are not held by SPY. Showing the top 30 by weight.
Sector Breakdown
| Sector | ARKG | SPY |
|---|---|---|
| Health Care | 93.3% | 8.9% |
| Information Technology | 0.0% | 37.6% |
| Financials | 0.0% | 12.3% |
| Communication Services | 0.0% | 9.7% |
| Consumer Discretionary | 0.0% | 9.3% |
| Other Sectors | 0.0% | 22.1% |
| Unclassified | 6.3% | 0.0% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts. “Unclassified” is weight we could not classify (6% of ARKG, 0% of SPY).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| ARKG | +1.0% | +48.6% | +84.8% | +9.2% | -13.0% | +9.2% | — |
| SPY | +3.4% | +14.0% | +23.7% | +21.2% | +13.3% | +15.3% | 0.97% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in ARKG vs SPY →
Shared Holdings(1)
 LLYEli Lilly & Co. COM | 0.95% | 1.42% | 0.95% |
|---|
Frequently Asked Questions
How much do ARKG and SPY overlap?
ARKG and SPY overlap by 0.9% of portfolio weight. They share 1 holdings (ARKG holds 32 positions and SPY holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ARKG and SPY?
The two portfolios are 0.9% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of ARKG and SPY?
The largest positions held by both funds are LLY. Together the top 1 shared positions account for 100% of the total overlap.
What does ARKG own that SPY doesn't?
31 positions (98.6% of ARKG) are unique to ARKG, led by TEM, TWST and 1CG. In the other direction, 503 positions (98.5% of SPY) are unique to SPY.